- Adver-Tees Screen Printing
- AIBL Advertising Inc
- Aircraft Supply & Repair Inc
- Albrecht Beer Distributors
- Alfred M Lutheran
- Allas Construction Co
- Allegheny County Airport
- Allegheny County Fire Station
- Allegheny County S Campus Libr
- Allegheny County Works Dept
- Allegheny Flying Club
- Allegheny Integrated Hlth Grp
